//StudybarCommentBegin
#include <stdio.h>

int main()
{

    int a, b;

    scanf("%d%d", &a, &b);
    //StudybarCommentEnd
    a = a + b;
    b = a - b;
    a = a - b;

    //StudybarCommentBegin
    printf("%d %d", a, b);
    return 0;
}

//StudybarCommentEnd

